What is the H.C.F of the numbers 36,54 and 90?
If secθ +tanθ=x, then tanθ is -
If x is an integer and y=-2x-8 , what is the least value of x for which y is less than 9?
If the length of a rectangle is increased by 20% and width is decreased by 20% ,what is the change in area of the rectangle?
If a+1/a =3 , what is a3+1/a3?
Bus fares were recently increased from Taka 1.70 to Taka 2.00.What was the approximate percentage of increase?
which of the numbers below is not equivalent to 20% ?
The sum of first 17 terms of the series 5, 13, 17, --- is -
All possible three digit numbers are formed by 1,3,5 . If one number is chosen randomly, the probability that it would be divisible by 5 is -
If x:y =5:3 , then (8x-5y) : (8x +5y) =?
The three sides of a triangle are x+1 , 2x -1 and 3x +1 respectively and the perimeter is 25 cm. The length of the smallest side is -
The difference in Taka between simple and compound interest at 5% annually on a sum of Tk. 5000 after 2 years is -
Log 36/log6 =
If A = { 1,2,3,4,5} , then the number of proper subsets of A is -
Every 3 minutes, 4 litres of water are poured into a 2,000 - litre tank , after 2 hours, what percent of the tank will be full?
P and Q are brothers, R and S are sister. The father of P is brother of S. Q is related to R as -
The Next Number in the sequence 3,6,11,18 ,27, .... is -
If 2x -1≥ -3, then -
The average of six numbers is 14. The average of four of these numbers is 15. The average of the remaining two number is -
If xy= 2 any xy2=16, what is the value of x?
The perimeter of a circle measures 16π cm, what is the area of the circle in sq cm ?
There are 10 true-false questions in an examination. these questions can be answered in -
How many integers from 1 to 1000 are divisible by 30 but not by 16?
If n is an even integer, which of the following must be an odd integer?